/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package vip.zhenzicheng.rocketmq.api.operation;

import org.apache.commons.cli.*;
import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.remoting.common.RemotingHelper;

public class Producer {

  public static void main(String[] args) throws MQClientException, InterruptedException {
    CommandLine commandLine = buildCommandline(args);
    if (commandLine != null) {
      String group = commandLine.getOptionValue('g');
      String topic = commandLine.getOptionValue('t');
      String tags = commandLine.getOptionValue('a');
      String keys = commandLine.getOptionValue('k');
      String msgCount = commandLine.getOptionValue('c');

      DefaultMQProducer producer = new DefaultMQProducer(group);
      producer.setInstanceName(Long.toString(System.currentTimeMillis()));

      producer.start();

      for (int i = 0; i < Integer.parseInt(msgCount); i++) {
        try {
          Message msg = new Message(
              topic,
              tags,
              keys,
              ("Hello RocketMQ " + i).getBytes(RemotingHelper.DEFAULT_CHARSET));
          SendResult sendResult = producer.send(msg);
          System.out.printf("%-8d %s%n", i, sendResult);
        } catch (Exception e) {
          e.printStackTrace();
          Thread.sleep(1000);
        }
      }

      producer.shutdown();
    }
  }

  public static CommandLine buildCommandline(String[] args) {
    final Options options = new Options();
    Option opt = new Option("h", "help", false, "Print help");
    opt.setRequired(false);
    options.addOption(opt);

    opt = new Option("g", "producerGroup", true, "Producer Group Name");
    opt.setRequired(true);
    options.addOption(opt);

    opt = new Option("t", "topic", true, "Topic Name");
    opt.setRequired(true);
    options.addOption(opt);

    opt = new Option("a", "tags", true, "Tags Name");
    opt.setRequired(true);
    options.addOption(opt);

    opt = new Option("k", "keys", true, "Keys Name");
    opt.setRequired(true);
    options.addOption(opt);

    opt = new Option("c", "msgCount", true, "Message Count");
    opt.setRequired(true);
    options.addOption(opt);

    PosixParser parser = new PosixParser();
    HelpFormatter hf = new HelpFormatter();
    hf.setWidth(110);
    CommandLine commandLine = null;
    try {
      commandLine = parser.parse(options, args);
      if (commandLine.hasOption('h')) {
        hf.printHelp("producer", options, true);
        return null;
      }
    } catch (ParseException e) {
      hf.printHelp("producer", options, true);
      return null;
    }

    return commandLine;
  }
}
